The correct answer is A. When California applied for statehood, the Southern states feared that they would lose equality in the Senate. Before the admission of California, Southern slavist states and Northern free states had the same number of Senators. But when California was admitted in 1850, it entered into the Union as a free state, so it created a power disbalance for the Southern states, giving to extra votes to the abolitionist states.
I believe the answer is 1990. If you are not sure about my answer just google it.
Diseases were spread and the soil was ruined in some parts. I hope this helped
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Its false be he earned what he had . he was a very good president .